"... From our archaeological observations, it is obvious that teams of workers assigned to the excavation and decoration of the tomb of the vizier were active in a continuous mode, from sometime prior to Year 30 of Amenhotep III's reign, up to when the work was suddenly interrupted and stopped between Year 30 and Year 35, or shortly after that year. The decoration of the chapel was never resumed after the interruption, so it cannot be thought that these column texts have different dates of execution. Thus, the texts referring to Amenholep IV are not in any way posterior to Amenhotep III. Therefore, they are emphatic evidence that the decorative plans for the tomb included the mention of the two crowned kings, both, at same time, Sons of Re and rulers of Upper and Lower Egypt. ..."

Towards "our archaeological observations" I still would have a few ask...

A conscious termination (for whatever reason) of the work on Tomb No -28- before Year 35 seems to me, with view of the demonstrably still in office Vizier Amenhotep (Stele Gebel el-Silsilah), very unlikely. About these "archaeological observations" of the excavators I would like to read more facts...

The ceremonies of the Heb-Sed were with any certainty at all three known festivals for Nebmaatra Amenhotep similar or the same. With absolute certainty the appearance of the king and his repeated coronation in the Heb-Sed pavilion, as a central moment in the ritual sequence, was included in all these festivities. That's why I think it is not possible to see the ephiteton "He who Appears in the Tjentjat" in the inscription on the pillar in the tomb as a secure and unequivocal reference to his first Heb-Sed in Year 30.